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# Copyright (c) 2012, 2013 Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 of the
# License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
# 02110-1301 USA
import mforms
import threading
from Queue import Queue, Empty
from wb_admin_utils import weakcb
class Task(threading.Thread):
def __init__(self, ctrl_be, command, queue):
threading.Thread.__init__(self)
self.ctrl_be = ctrl_be
self.command = command
self.queue = queue
self.returncode = None
def handle_output(self, text):
if text is not None:
self.queue.put(text)
def run(self):
try:
self.returncode = self.command(output_handler = self.handle_output)
if self.returncode != 0:
self.queue.put("Command exited with status %s\n" % self.returncode)
self.queue.put(None)
except Exception:
import traceback
self.queue.put("\nError executing command:\n"+traceback.format_exc())
self.queue.put(None)
class CommandExecutePanel(mforms.Form):
def __init__(self, ctrl_be, title, descr, stop_callback = None, close_callback=None, progress_parser_callback=None):
mforms.Form.__init__(self, mforms.Form.main_form(), mforms.FormDialogFrame)
self.ctrl_be = ctrl_be
self._done = False
self._update_tm = None
self.finished_callback = None
self.stop_callback = stop_callback
self.close_callback = close_callback
self.progress_parser_callback = progress_parser_callback
self.show(False)
self.box = mforms.newBox(False)
self.set_content(self.box)
self.box.set_padding(12)
self.box.set_spacing(20)
self.set_title(title)
self.label = mforms.newLabel(descr)
self.box.add(self.label, False, True)
hb = mforms.newBox(True)
self.progress = mforms.newProgressBar()
self.progress_label = mforms.newLabel("")
self.progress_label.set_size(100, -1)
hb.add(self.progress_label, False, True)
hb.add(self.progress, True, True)
self.box.add(hb, False, True)
self.logbox = mforms.newTextBox(mforms.VerticalScrollBar)
self.logbox.set_read_only(True)
panel = mforms.newPanel(mforms.TitledBoxPanel)
panel.set_title("Command Output")
self.logbox.set_padding(8)
panel.add(self.logbox)
self.box.add(panel, True, True)
bbox = mforms.newBox(True)
self.box.add_end(bbox, False, True)
self.stop = mforms.newButton()
if stop_callback:
self.stop.set_text("Stop")
else:
self.stop.set_text("Close")
self.stop.add_clicked_callback(self.do_stop)
bbox.add_end(self.stop, False, True)
self.set_size(700, 500)
self.center()
def _update(self):
while True:
try:
msg = self.queue.get_nowait()
except Empty:
break
if msg is None:
self.progress.stop()
self._done = True
self.stop.set_text("Close")
self.stop.set_enabled(True)
if self.finished_callback(self.task.returncode):
self.progress_label.set_text("Finished")
else:
self.progress_label.set_text("FAILED")
self._update_tm = None
return False
else:
if self.progress_parser_callback:
progress = self.progress_parser_callback(msg)
if progress is not None:
self.progress.set_value(float(progress))
self.logbox.append_text_and_scroll(msg, True)
return True
def close(self):
if self._update_tm:
mforms.Utilities.cancel_timeout(self._update_tm)
self._update_tm = None
mforms.Form.close(self)
def do_stop(self):
if self.stop_callback:
self.stop_callback()
if self._done:
self.close_callback()
def run_command(self, command, on_finish=lambda: None):
if self.stop_callback:
self.stop.set_text("Stop")
self.stop.set_enabled(True)
else:
self.stop.set_text("Close")
self.stop.set_enabled(False)
self.progress_label.set_text("Executing...")
if self.progress_parser_callback:
self.progress.set_indeterminate(False)
self.progress.set_value(0)
else:
self.progress.set_indeterminate(True)
self.progress.start()
self._done = False
self.queue = Queue()
self.finished_callback = on_finish
self.task = Task(self.ctrl_be, command, self.queue)
self._update_tm = mforms.Utilities.add_timeout(0.5, weakcb(self, "_update"))
self.task.start()
def get_log_text(self):
return self.logbox.get_string_value().encode("utf8")
def append_log(self, text):
self.logbox.append_text_and_scroll(text, True)
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